| abstract |
The invention discloses a new process for extracting transparent high-acyl gellan gum. The process comprises the following steps of: fermenting glucose or cane sugar serving as a carbon source and yeast extract and/or peptone serving as a nitrogen source to obtain fermentation liquor, performing coarse filtration, adding protease and muramidase at the temperature of between 40 and 60 DEG C under the condition that the PH value is 6 to 8, reacting fully, pumping into an ultrafiltration membrane to perform precise filtration, precipitating by using an organic solvent, performing solid-liquid separation, drying and crushing to obtain the transparent high-acyl gellan gum. The process for extracting the transparent high-acyl gellan gum is simple and novel, low in cost and high in yield, and the product is high in transparency, purity and dissolubility. |